A new class of conjugated strigolactone analogues with fluorescent properties: synthesis and biological activity
作者:Chaitali Bhattacharya、Paola Bonfante、Annamaria Deagostino、Yoram Kapulnik、Paolo Larini、Ernesto G. Occhiato、Cristina Prandi、Paolo Venturello
DOI:10.1039/b907026e
日期:——
A new class of strigolactone analogues has been synthesized. They differ from known molecules, both of natural and synthetic origin, in two main features. The conjugated system extends from the enol ether bridge to the A ring, the B ring is a heterocycle while the C ring is a cyclic ketone instead of a γ-lactone. The key step of the synthesis is a Nazarov cyclization on activated substrates. Bioassays
已经合成了新的一类内酯基内酯类似物。它们与天然和合成来源的已知分子有两个主要特征。共轭体系从烯醇醚桥延伸至A环,B环为杂环,而C环为环酮而不是γ-内酯。合成的关键步骤是在活化的底物上进行Nazarov环化。使用Orobanche种子进行的生物测定表明,所有分子都强烈刺激发芽。特别是含氧类似物是最活跃的。有趣的是,一些新分子显示出荧光性质。